Moxa C168 Driver

The Moxa C168 driver enables Windows to communicate with this multiport serial expansion board and make its serial ports available to compatible applications. Installing the appropriate Moxa driver helps connected equipment exchange data through the board, whether you use it for industrial communications, monitoring, or other serial-based tasks.

Key Features

• Multiport serial access: Allows Windows applications to use the C168’s serial connections through assigned COM ports.
• Device recognition: Provides the software interface Windows needs to identify and operate the board.
• Communication settings: Supports configuration of serial parameters, such as baud rate, parity, and flow control, where available in the driver or application.
• Legacy equipment connectivity: Helps software communicate with serial devices, including instruments, controllers, and terminals. Although listed under Network, the C168 is a serial expansion board rather than an Ethernet adapter.

How to Install

1. Confirm your hardware and Windows version. Check the board’s exact model designation and whether your system uses a 32-bit or 64-bit edition of Windows. For Windows 11, 10, 8, or 7, verify that the selected driver explicitly supports your operating system and C168 variant; older packages may not support newer Windows releases.
2. Download and extract the matching package. Save the driver locally and unpack it if necessary. Review any included installation notes for hardware requirements or special setup instructions.
3. Follow the required installation order. Some packages require software setup before hardware installation. If you need to fit the board, shut down the computer, disconnect power, and follow the hardware manual.
4. Install the driver. Run the supplied installer with administrator privileges. If the package uses a manual installation method, follow its instructions to add the driver through Windows Device Manager.
5. Restart if prompted and test the ports. Check Device Manager for assigned COM ports and any warning indicators. Select the appropriate port in your application, match its communication settings to the connected equipment, and test data transfer.

If Windows does not recognize the board, recheck the model, driver compatibility, and hardware configuration before trying another package.

Common Issues and Fixes

• Install fails or rolls back: Uninstall any older Moxa multiport serial drivers first, reboot, then run the C168 driver installer as administrator. On newer Windows versions, check whether the C168 package is signed/supported for your OS; legacy packages may need compatibility handling.
• Device not detected: Reseat the C168 PCI card and try another PCI slot. Check Device Manager for an unknown “PCI serial port” or yellow warning; if absent, verify the card is enabled in BIOS and that the slot is working.
• Version/COM port conflicts: Remove stale Moxa COM ports in Device Manager and clear old assignments in the Moxa utility before reinstalling. Use one matching C168 driver version and reboot so ports re-enumerate cleanly.